TY - JOUR AU - D. K. Potapov TI - Estimation of the bifurcation parameter in spectral problems for equations with discontinuous operators JO - Ufa mathematical journal PY - 2011 SP - 42 EP - 44 VL - 3 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/UFA_2011_3_1_a3/ LA - en ID - UFA_2011_3_1_a3 ER -